Ski Boot Mondopoint Converter

How ski boot sizes convert

Ski boots are sold in mondopoint, a size equal to your foot length in centimeters. A mondopoint 26.5 boot is made for a foot about 265 mm long. The system also defines foot width in millimeters, which is why some labels read like 280/110. Street shoe sizes such as US, UK and EU are not built on foot length in the same way, so the conversion below follows the common industry chart and rounds to the nearest half size.

The rule of thumb is simple. US men's size is mondopoint minus 18, US women's is one size above the men's number, and UK runs one below US men's. EU sizes are in Paris points, where one point is two thirds of a centimeter. The EU figure is about (mondopoint + 1) times 1.5. Worked example: mondopoint 26.5 gives US men's 8.5, US women's 9.5, UK 7.5 and EU 41.

Full mondopoint chart. Read across from any column. The shell size column shows the approximate shell, which usually covers two half sizes, for example 26.5 and 27.0 in a 27 shell.

Two cautions. First, brands cut boots differently, so a 26.5 in one brand can fit like a 26 or 27 in another, and the last (width) matters as much as length. Second, the shell size shown here is an approximation, because makers group shells in their own way. Buy by mondopoint, then let a boot fitter check length and width. For ski lengths see the ski size calculator, and for a fit-based recommendation try the ski boot size finder.

Where these numbers come from

The formulas and default values in this calculator are based on:

• Wikipedia, Mondopoint (definition of foot length and width in millimeters, opened 2026-09-30). Note: Street-size columns and shell size use the common industry rule of thumb, rounded to half sizes. Brand charts differ by up to a half size

This is a planning estimate, not medical, legal or immigration advice. Fees, allowances, limits and entry rules change, so confirm the figures with your airline, cruise line, customs agency or the official government source before you book or travel, and follow their rules if they differ from this page.